də̇ˈlēshən, dēˈ- noun
( -s )
Etymology: Latin deletion-, deletio, from deletus (past participle of delēre to wipe out, destroy) + -ion-, -io — more at delete
1. : an act of deleting, blotting out, or erasing : destruction , extinction
2.
a. : something deleted especially from written matter : a deleted passage : erasure
deletions by the censor
b. : deficiency 2b ; especially : a large deficiency not including either end of a chromosome